An example of xylem tissue is:?

A. openings in leaves

B. long fibres in celery

C. cells that covers the surface of leaves

D. small projections extending from roots

Express a mass of 0.014 mg in grams

Transportation within the body is mainly the function of

A sound wave has a frequency of 20 hz and a wavelength of 100 m. what is the wave speed

Grasses → mice → cat → coyote As matter and energy move from grasses to coyotes the amount of available energy

What do you mean by migratory bird

Disorder affecting one or more nerves where they exit the spine

What senses is associated with the temporal lobe?

What are 2 ways nitrogen becomes usable to plants, humans and animals?

What factor has the greatest effect on species diversity

A scientist inserts a radioactively labeled DNA molecule into a bacterium. The bacterium replicates this DNA molecule and distributes one daughter molecule (double helix) to each of two daughter cells.